1979955207 has 12 divisors (see below), whose sum is σ = 2984280624. Its totient is φ = 1262580000.

The previous prime is 1979955181. The next prime is 1979955221. The reversal of 1979955207 is 7025599791.

1979955207 is a `hidden beast` number, since 19 + 79 + 9 + 552 + 0 + 7 = 666.

It is not a de Polignac number, because 1979955207 - 2¹⁰ = 1979954183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1979955227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4782294 + ... + 4782707.

It is an arithmetic number, because the mean of its divisors is an integer number (248690052).

Almost surely, 2^1979955207 is an apocalyptic number.

1979955207 is a deficient number, since it is larger than the sum of its proper divisors (1004325417).

1979955207 is a wasteful number, since it uses less digits than its factorization.

1979955207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9565030 (or 9565027 counting only the distinct ones).

The product of its (nonzero) digits is 1786050, while the sum is 54.

The square root of 1979955207 is about 44496.6875958200. The cubic root of 1979955207 is about 1255.6977663984.

The spelling of 1979955207 in words is "one billion, nine hundred seventy-nine million, nine hundred fifty-five thousand, two hundred seven".